Music-leaf turner



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W. 5. LUKAWSKH MUSIC LEAF TURNER Filed June 24, 1921 2 Sheets-Sheet 1 WITNESS:

Aug. 19 1924,

W. s. LuKAwsKn MUSIC LEAF TURNER Filed June 24, 192] 2 $hee1.s-Sheet 2 Wm ijzlamwm/ INVENTOR w/vamm/ BY ATTO RN EY WITNESS:

Patented Aug. 19, 1924.

UNITED STATES WALTER s. LUKAwsKI, or CHICAGO, ILLINOIS.

MUSIC-LEAF TURNER.

Application filed June 24, 1921. Serial No. 480,209.

To all whom it may cmwc'rn;

Be it known that I, WALTER S. LUKAwsKI,

a citizen of the United States. residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful .Improvements in Music-Leaf Turners, of

which the following is a specification.

This invention relates to music leaf turners and an object of the invention is to provide a music support which is designed for use either upon a stand, piano, or other musical instrument, and one which embodies means whereby the individual sheets of a piece of music may be easily and accurately turned at the )roper time. v

More specifically the invention compre hends the provision of a plurality of in dependently operated sheet music engaging members which are normally restrained from movement by catches and releasing means for releasing said catches to permit the sheet turning means to become operative for turning the sheets of music.

A still further object of this invention is to provide a device as specified which is positive in its action and which will not crimp or crease the sheets of music.

c Other objects of the invention will appear in the following detailed description and in the accompanying drawing wherein:

Fig. l is a front elevation of the im proved music leaf turner showing it in use.

Fig. 2 is a rear elevation of the improved music leaf turner.

Fig. 3 is a vertical section through the music leaf turner.

Fig. 4 is a horizontal section taken on the line 4t of Fig. 3.

Fig. 5 is a fragmentary vertical section taken on the line 55 of Fig. 1. I

Fig. 6 is a detail view of a part of the music leaf turner structure.

Fig. 7 is a fragmentary detail in plan illustrating the manner of mounting the catch releasing members.

Referring more particularly to the drawing the improved music leaf turner comprises a main support 1, to which is attached a supporting rod or upright 2. The upright 2 is bent so as to support the music leaf carrying members at the proper angle to permit easy reading of the music sup ported thereby and it has a bracket 3 attached thereto adjacent to its upper end to which bracket 3 a cross arm 41 is attached. Diagonal bracing arms 5 and 6 are connected to the cross arm 1- by slots and pin connections as shown at 7 and to a second cross arm 8 which is supported adjacent to the support 1 by means of the notched up rights as-shown in detail in Fig. 6 to permit the bar 8 to be raised or lowered, said upright being secured to the base 1 by means of the flanges Z). The upper end of the up right 2 projects through a cylindrical housing 9 and has arms 10 rotatably mounted thereon and prevented from movement longitudinally of the upright by a thumb nut 11. The arms 10 are connected by suitable vertical portions 12 to the pivotally mounted arms 13. The arms 13 are twisted adjacent their inner ends as shown at 1 1 so that the portions 15 thereof, which extend into the housing 9, will lie in horizontal planes. The ends 15 are mounted upon sleeves 16 which are in turn pivotally or rotatably mounted upon the standard 2 so as to permit swinging movement of the arms 13. Suitable sheet music engaging plates 17 are carried by the outer free ends of the arms 13 while the inner ends 15 of the arms are provided with openings 18 which are adapted to receive therethrough the bill ends 19 of the pivotal latches 20. The latches 20 are pivotally mounted as shown at 21 to a flange 22 formed upon the housing 9. The cylindrical casing 9 is provided with suitable slots 24 to permit unimpeded swinging movement of the arms 13 for turning the sheets of music. The inner end 15 of the lower arm 13 is provided with an upstanding projection 25 which is adapted to cooperate with a depending projection 26 formed on the latch 20 directly thereabove, for insuring proper successive operation of the arms and for preventing the turning of the second arm prior to the turning of the first arm which engages the first sheet of music.

Spiral springs 28 are connected to the housing 9 and to the inner ends 15 of the arms 13 for swinging the arms which carry the sheets of music to be turned. The springs are tensioned or restrained from reflexing action by means of the catches 20. The transverse projections 26 on the catches or triggers 20 are in alignment with the operating rod 30, the lower end of which rod rests upon the inner end of the trip lever 31. The trip lever 31 is pivotally mounted as shown at 32 and is held in its normal position by means of a flat spring 33 and when it is desired to turn a sheet of music the trip lever 31 is operated or rocked upon its pivot which will move therod 30 upwardly of this rod engaging projection 26 on the catch or trigger 20 which controls the lowermost arm, and will rock the trig ger or catch releasing arm and permit the leaf turning arm 13 to be swung by reflexing action of its spring 28 for turning a sheet of music. The projection thereon will at that time, be moved into registration with the projection 26 on the trigger above that which controls the lowermost arm so that the upperarm controlling trigger will be released upon a second or subsequent operation of the rod 30 by operation of the trip lever 31. Any suitable type of thumb rest 34 may be provided on the trip lever 31.

The pivotal movement of the trip lever 31 is regulated b means of a set screw 35 which is carried y a suitable bracket 36.

Return levers 37 are pivotally carried as shown at 38 by the support 1 and they are connected by wires 39 to the arms 10 passing'through a suitable guide 40, and connected to the arms as shown at 41 so that when the return levers 37 are rocked the arms 10 and 13 will be returned to their normal position. As clearly shown in Fig. 7 of the drawing the return arms 37 will be supported by a suitable bracket 42 which is attached in any suitable manner to the support 1 and has upstanding aligning cars 43 thereon. The arms 43', which support one of the return levers 37, are disposed at a greater distance apart than the cars 43 which support the other of the arms so as to permit free, unimpeded movement of one arm independently of the other.

It is, of course, to be understood that the invention may be constructed in various other manners and the parts associated in different relations and, therefore, I do not desire to be limited in any manner except as set forth in the claims hereunto appended.

Having thus described my invention what I claim is:

1. In a music leaf turner, the combination of a shaft and a plurality of oscillatory mounted bracing arms, music leaf earring arms rigidly connected to said oscillatory arms, and pivotally mounted on said, shaft, said music leaf carrying arms provided with horizontally positioned portions having openings therein, pivotally supported latches engaging in said openings for preventing movement of the pivotally mounted music leaf carrying arms, a release lever, and means for engaging said release lever and latches for releasing the latches to permitswinging movement of the music leaf carrying arms.

2. In a music leaf turner, the combination of a shaft and a plurality of oscillatory mounted bracing arms, music leaf carrying arms rigidly connected to said oscillatory arms and pivotally mounted on said shaft, said music leaf carrying arms provided with horizontally positioned portions having openings therein, pivotally supported latches engaging in said openings for preventing movement of the pivotally mounted music leaf carrying arms, a release lever, and means for engaging said release lever and latches for releasing the latches to permit swinging movement of the music leaf carrying arms, depending rojections formed on said latches, rip-standing projections formed on certain of the pivoted arms for engage-- ment with said latch projections to prevent movement of more than one of said music leaf carrying" arms at a time.

In testimony whereof I affix my signature.

WALTER S. LUKAVSKI. 

